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Molded Case Circuit Breaker

For circuit breaker systems in commercial and industrial facilities, molded case circuit breakers are among the most widely used components for reliable overcurrent protection and electrical distribution. Molded case circuit breakers provide automatic circuit interruption during overload or short circuit conditions, protecting electrical systems and equipment from damage while enabling manual switching control. Electrical.com carries an extensive selection of molded case circuit breakers from all major manufacturers, including new, used, surplus, and re-certified options. These components are designed to meet the diverse needs of commercial buildings, manufacturing facilities, data centers, and industrial power distribution applications.
SORT BY
Part Number
PRICE
Manufacturer
Amperage
Voltage
24333
24333
In Stock
From
$1.32
Merlin Gerin
3
440
31195
31195
In Stock
From
$13.13
Square D
630
690
60240
60240
In Stock
From
$36.01
Schneider Electric
5
240
60247
60247
In Stock
From
$144.84
Square D
20
240
A9F19310
A9F19310
In Stock
From
$65.69
Schneider Electric
10
400
A9N19810
A9N19810
In Stock
From
$245.71
Schneider Electric
80
400
A9N19818
A9N19818
In Stock
From
$391.89
Schneider Electric
100
400
A9N19819
A9N19819
In Stock
From
$410.17
Schneider Electric
100
400
A9N19823
A9N19823
In Stock
From
$325.01
Schneider Electric
100
400
A9N19825
A9N19825
In Stock
From
$267.04
Schneider Electric
125
400
A9N19826
A9N19826
In Stock
From
$346.94
Schneider Electric
125
400
A9N19827
A9N19827
In Stock
From
$519.50
Schneider Electric
125
400
A9N19830
A9N19830
In Stock
From
$346.37
Schneider Electric
125
400
A9N19831
A9N19831
In Stock
From
$539.89
Schneider Electric
125
400
EZD160E3100ELN
EZD160E3100ELN
In Stock
From
$438.74
Schneider Electric
100
690
EZD160E4063ELN
EZD160E4063ELN
In Stock
From
$721.17
Schneider Electric
63
690
EZD160E4080ELN
EZD160E4080ELN
In Stock
From
$733.42
Schneider Electric
80
690
EZD160E4100ELN
EZD160E4100ELN
In Stock
From
$746.24
Schneider Electric
100
690
EZD160E4160ELN
EZD160E4160ELN
In Stock
From
$510.08
Schneider Electric
160
690
EZD160E4160N
EZD160E4160N
In Stock
From
$245.74
Schneider Electric
160
690
EZD250E4250ELN
EZD250E4250ELN
In Stock
From
$568.58
Schneider Electric
250
690
EZD250M3200N
EZD250M3200N
In Stock
From
$209.84
Schneider Electric
200
690
EZD630E3500K
EZD630E3500K
In Stock
From
$783.38
Schneider Electric
500
690
EZD630E3630K
EZD630E3630K
In Stock
From
$1,891.28
Schneider Electric
630
690
Popular Molded Case Circuit Breaker Manufacturers
Eaton
Square D
ABB
Siemens

Electrical.com stocks the largest inventory of molded case circuit breakers in the world, with over 1 million square feet of new, used, surplus, and re-certified MCCBs available for immediate shipment. From standard thermal-magnetic breakers to electronic trip units across all amperage ratings, we have what you need when others say no. Our comprehensive molded case circuit breaker inventory spans all voltage and current ratings, frame sizes, and interrupting capacities from all major manufacturers including current production and discontinued models from legacy suppliers. Available in new factory condition, surplus stock, and re-certified options‚ All backed by our standard 2-year Electrical.com warranty. Our molded case circuit breakers serve critical applications across commercial buildings, industrial facilities, manufacturing plants, data centers, healthcare facilities, distribution panels, motor control centers, switchboards, and power distribution systems.


Whether you're maintaining legacy equipment with obsolete MCCB models or sourcing current production breakers for new installations and retrofits, our 40+ warehouse locations across the US and Canada ensure rapid delivery to minimize your downtime. Need molded case circuit breakers now? Call 877-999-7077 or email [email protected]. With same-day shipping available and the right parts ready to ship from our nearest warehouse location, Electrical.com gets your operations back online fast. We can say yes when others have to say no.